Railway-switch.



E. G. JACKSON. RAILWAY SWITCH.

APPLIUATION FILED 00115 1910.

Patented July 4, 1911.

INVENTOR.

ATET OFFICE.

RAILWAY-SWITCH.

To all whom it may concern:

Be it known that I, ERNEST GEORGE JAcx- SON, of the city of Toronto, inthe county of York, in the Province of Ontario, Canada, have inventedcertain new and useful Improvements in Railway-Switches, of which thefollowing is the specification.

My invention relates to improvements in railway switches and the objectof the in vention is to devise a simple device whereby the adjustment ofthe switch point may be accomplished by the operation of the switchstand lever so as to positively and automatically bring the switch pointto a completely closed position and thus dispense with various means ofadjustment in the switch itself, and it consists essentially of abracket forming part of the switch stand and of segmental form, wedgeblocks secured to each side of the bracket and adjustable means forsecuring the block to the bracket, whereby the wedge may be adjusted todifferent degrees of incline, as hereinafter more particularly describedby the following specification.

Figure 1 is a general perspective view of a switch stand. Fig. 2 is avertical sectional view through the switch stand. Fig. 3 is a plan viewof the switch stand. Fig. 4 is an enlarged sectional detail of the meansfor adjustably connecting the wedge blocks to the segmental switch standbracket.

In the drawings like letters of reference indicate corresponding partsin each figure.

A is a switch stand of usual form and provided with a verticallyjournaled mast B held in the usual manner in the vertical bearings B and13 as will be seen from the drawings. I only show the lower part of themast the upper part to which the target is secured being broken away.

C is a block secured to the mast B and provided with the usual jaws Cbetween which the operating lever C is pivoted on pin C All the parts Ihave hitherto described are usual to the construction of switch standsand I therefore lay no claim to them. I will now describe the means bywhich the switch point is positively drawn into its two closed positionswhen the operating lever C is thrown into its depressed position andwhich I claim to be new.

D is a bracket secured to or forming part of the switch stand. Thebracket D is of segmental form and is provided with Specification ofLetters Patent.

Application filed, October 15, 1910.

Patented July 4, 1911. Serial No. 587,645.

depending wings D and D forming the sides of the bracket.

E and F are wedge blocks provided with countersunk orifices G and G (seeFig. 4).

G and Gr are bolts extending through the countersunk orifices l of theblocks E and F and the orifices Gr in the wings D D It will, of course,be understood that the bolt G extends through the countersunk orificesand is used t oG e cure wedge after adjustment by bolt Gr is a boltprovided with a major portion G and a minor threaded portion G The majorthreaded portion G is threaded into an orifice G and a minor threadedportion Gr extends loosely through the orifice G the end thereof beingprovided with a nut G threaded thereon. It will be seen by referring toFig. 4 of the drawing, that the wedge blocks E and F are held betweenthe shoulder G and the nut G It will thus be seen that by turning thebolts Gr in the orifice Gr that the lower end of the blocks E and F maybe adjusted inwardly or outwardly to increase or decrease the incline ofthe blocks.

G is a lock nut designed to lock the bolt G in place after it has beenadjusted.

It will be readily seen from this description that when the lever C islowered the side of the lever is brought into contact with the inclinedface of one of the blocks E and F. It will be seen that when the lever Cis thrown over into either closed positions and brought into contactwith the in clined blocks, that the inclined face of such blocks wouldfurther carry the lever over toward either of the closed positions, soas to bring the switch point positively tight into place. If anyadjustment is required to bring the switch point more closely intoposition, the adjustment may be quickly and readily accomplished byturning the threaded nut G so as to give a greater incline to theinclined blocks.

By my device the mast is retained intact and the adjustmentautomatically accomplished in a simple and efficient way by theoperation of the operating lever.

What I claim as my invention is:

1. In a switch stand operating mechanism for switches, the combinationwith the mast, the block secured 'to the mast and the operating leverpivoted between the jaws of the blocks, of inclined members supported bythe switch stand and with which the operating lever is designed to bebrought into contact as it is lowered at its closed positions, as andfor the purpose specified.

2. In a switch stand operating mechanism for switches, the combinationwith the mast supported in the stand, the block secured to the mastprovided with jaws and the operating lever pivoted between the jaws of abracket forming part of the switch stand, wedge blocks supported by thebracket and with which operating lever is designed to be brought intocontact, as it is lowered, as and for the purpose specified.

3. In a switch stand operating mechanism for switches, the combinationwith the mast supported in the stand, the blocks secured to the mastprovided with jaws, and the operating lever pivoted between the aws, ofa bracket forming part of the switch stand, wedge blocks supported bythe bracket and with which the operating lever is designed to be broughtinto contact as it is lowered, as adjustable means for increasing theincline of the blocks as and for the purpose specified.

4. In a switch stand operating mechanism for switches, the combinationwith the mast supported in the stand, the blocks secured to the mastprovided with jaws and the operating lever pivoted between the jaws, ofa bracket forming part of the switch stand, wedge blocks supported bythe bracket and with which the operating lever is designed to be broughtinto contact as it is lowered, means for pivoting the block at the top,a

threaded bolt extending through the lower portion having an enlargedportion extending through the bracket, a nut threaded on to the bolt soas to engage the block between itself and the enlarged portion of thebolt as and for the purpose specified.

5. In a switch stand operating mechanism for switches, the combinationwith the mast having a crank thereon, of an operating lever and handlesuitably secured to the mast and means for increasing the throw of thecrank beyond the normal by throwing the operating lever from thehorizontal to the vertical position as and for the purpose specified.

6. In a switch stand operating mechanism for switches, the combinationwith the mast, the block secured to the mast and provided with jaws andthe operating lever pivoted thereon, of inclined members supported bythe switch stand and with which the operating lever is designed to bebrought into contact as it is lowered at its closed position.

7. In a switch stand operating mechanism for switches, the combinationwith the mast supported in the stand, a lever connected with the mast,and means for causing the lever to move about the axis of the mast assaid lever is moved downwardly.

8. In a switch stand operating mechanism for switches, the combinationwith the mast supported in the stand, a lever connected with the mast,and adjustable means for causing the lever to move about the axis of themast as said lever is moved downwardly.

ERNEST GEORGE J AGKSON. lVitnesses:

LoUIs BAGINE'L,

S. B. RITCHIE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington. D. G.

